contrib/ofed/management/opensm/opensm/osm_sminfo_rcv.c

   1 /*
   2  * Copyright (c) 2004-2008 Voltaire, Inc. All rights reserved.
   3  * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved.
   4  * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  */
  35
  36 /*
  37  * Abstract:
  38  *    Implementation of osm_sminfo_rcv_t.
  39  * This object represents the SMInfo Receiver object.
  40  * This object is part of the opensm family of objects.
  41  */
  42
  43 #if HAVE_CONFIG_H
  44 #  include <config.h>
  45 #endif                          /* HAVE_CONFIG_H */
  46
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <iba/ib_types.h>
  50 #include <complib/cl_qmap.h>
  51 #include <complib/cl_passivelock.h>
  52 #include <complib/cl_debug.h>
  53 #include <opensm/osm_madw.h>
  54 #include <opensm/osm_log.h>
  55 #include <opensm/osm_node.h>
  56 #include <opensm/osm_helper.h>
  57 #include <opensm/osm_subnet.h>
  58 #include <opensm/osm_sm.h>
  59 #include <opensm/osm_opensm.h>
  60
  61 /**********************************************************************
  62  Return TRUE if the remote sm given (by ib_sm_info_t) is higher,
  63  return FALSE otherwise.
  64  By higher - we mean: SM with higher priority or with same priority
  65  and lower GUID.
  66 **********************************************************************/
  67 static inline boolean_t
  68 __osm_sminfo_rcv_remote_sm_is_higher(IN osm_sm_t * sm,
  69                                      IN const ib_sm_info_t * p_remote_smi)
  70 {
  71         return (osm_sm_is_greater_than(ib_sminfo_get_priority(p_remote_smi),
  72                                        p_remote_smi->guid,
  73                                        sm->p_subn->opt.sm_priority,
  74                                        sm->p_subn->sm_port_guid));
  75
  76 }
  77
  78 /**********************************************************************
  79  **********************************************************************/
  80 static void
  81 __osm_sminfo_rcv_process_get_request(IN osm_sm_t * sm,
  82                                      IN const osm_madw_t * const p_madw)
  83 {
  84         uint8_t payload[IB_SMP_DATA_SIZE];
  85         ib_smp_t *p_smp;
  86         ib_sm_info_t *p_smi = (ib_sm_info_t *) payload;
  87         ib_api_status_t status;
  88         ib_sm_info_t *p_remote_smi;
  89
  90         OSM_LOG_ENTER(sm->p_log);
  91
  92         CL_ASSERT(p_madw);
  93
  94         /* No real need to grab the lock for this function. */
  95         memset(payload, 0, sizeof(payload));
  96
  97         p_smp = osm_madw_get_smp_ptr(p_madw);
  98
  99         CL_ASSERT(p_smp->method == IB_MAD_METHOD_GET);
 100
 101         p_smi->guid = sm->p_subn->sm_port_guid;
 102         p_smi->act_count = cl_hton32(sm->p_subn->p_osm->stats.qp0_mads_sent);
 103         p_smi->pri_state = (uint8_t) (sm->p_subn->sm_state |
 104                                       sm->p_subn->opt.sm_priority << 4);
 105         /*
 106            p.840 line 20 - Return 0 for the SM key unless we authenticate the
 107            requester as the master SM.
 108          */
 109         p_remote_smi = ib_smp_get_payload_ptr(osm_madw_get_smp_ptr(p_madw));
 110         if (ib_sminfo_get_state(p_remote_smi) == IB_SMINFO_STATE_MASTER) {
 111                 OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
 112                         "Responding to master SM with real sm_key\n");
 113                 p_smi->sm_key = sm->p_subn->opt.sm_key;
 114         } else {
 115                 /* The requester is not authenticated as master - set sm_key to zero. */
 116                 OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
 117                         "Responding to SM not master with zero sm_key\n");
 118                 p_smi->sm_key = 0;
 119         }
 120
 121         status = osm_resp_send(sm, p_madw, 0, payload);
 122         if (status != IB_SUCCESS) {
 123                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F02: "
 124                         "Error sending response (%s)\n",
 125                         ib_get_err_str(status));
 126                 goto Exit;
 127         }
 128
 129 Exit:
 130         OSM_LOG_EXIT(sm->p_log);
 131 }
 132
 133 /**********************************************************************
 134  * Check if the p_smp received is legal.
 135  * Current checks:
 136  *   MADHeader:AttributeModifier of ACKNOWLEDGE that was not sent by a
 137  *             Standby SM.
 138  *   MADHeader:AttributeModifiers of HANDOVER/DISABLE/STANDBY/DISCOVER
 139  *             that was not sent by a Master SM.
 140  * FUTURE - TO DO:
 141  *   Check that the SM_Key matches.
 142  **********************************************************************/
 143 static ib_api_status_t
 144 __osm_sminfo_rcv_check_set_req_legality(IN const ib_smp_t * const p_smp)
 145 {
 146         ib_sm_info_t *p_smi;
 147
 148         p_smi = ib_smp_get_payload_ptr(p_smp);
 149
 150         if (p_smp->attr_mod == IB_SMINFO_ATTR_MOD_ACKNOWLEDGE) {
 151                 if (ib_sminfo_get_state(p_smi) == IB_SMINFO_STATE_STANDBY)
 152                         return (IB_SUCCESS);
 153         } else if (p_smp->attr_mod == IB_SMINFO_ATTR_MOD_HANDOVER ||
 154                    p_smp->attr_mod == IB_SMINFO_ATTR_MOD_DISABLE ||
 155                    p_smp->attr_mod == IB_SMINFO_ATTR_MOD_STANDBY ||
 156                    p_smp->attr_mod == IB_SMINFO_ATTR_MOD_DISCOVER) {
 157                 if (ib_sminfo_get_state(p_smi) == IB_SMINFO_STATE_MASTER)
 158                         return (IB_SUCCESS);
 159         }
 160
 161         return (IB_INVALID_PARAMETER);
 162 }
 163
 164 /**********************************************************************
 165  **********************************************************************/
 166 static void
 167 __osm_sminfo_rcv_process_set_request(IN osm_sm_t * sm,
 168                                      IN const osm_madw_t * const p_madw)
 169 {
 170         uint8_t payload[IB_SMP_DATA_SIZE];
 171         ib_smp_t *p_smp;
 172         ib_sm_info_t *p_smi = (ib_sm_info_t *) payload;
 173         ib_sm_info_t *sm_smi;
 174         ib_api_status_t status;
 175         osm_sm_signal_t sm_signal;
 176         ib_sm_info_t *p_remote_smi;
 177
 178         OSM_LOG_ENTER(sm->p_log);
 179
 180         CL_ASSERT(p_madw);
 181
 182         memset(payload, 0, sizeof(payload));
 183
 184         p_smp = osm_madw_get_smp_ptr(p_madw);
 185         sm_smi = ib_smp_get_payload_ptr(p_smp);
 186
 187         if (p_smp->method != IB_MAD_METHOD_SET) {
 188                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F03: "
 189                         "Unsupported method 0x%X\n", p_smp->method);
 190                 goto Exit;
 191         }
 192
 193         CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
 194
 195         p_smi->guid = sm->p_subn->sm_port_guid;
 196         p_smi->act_count = cl_hton32(sm->p_subn->p_osm->stats.qp0_mads_sent);
 197         p_smi->pri_state = (uint8_t) (sm->p_subn->sm_state |
 198                                       sm->p_subn->opt.sm_priority << 4);
 199         /*
 200            p.840 line 20 - Return 0 for the SM key unless we authenticate the
 201            requester as the master SM.
 202          */
 203         p_remote_smi = ib_smp_get_payload_ptr(osm_madw_get_smp_ptr(p_madw));
 204         if (ib_sminfo_get_state(p_remote_smi) == IB_SMINFO_STATE_MASTER) {
 205                 OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
 206                         "Responding to master SM with real sm_key\n");
 207                 p_smi->sm_key = sm->p_subn->opt.sm_key;
 208         } else {
 209                 /* The requester is not authenticated as master - set sm_key to zero. */
 210                 OSM_LOG(sm->p_log, OSM_LOG_DEBUG,
 211                         "Responding to SM not master with zero sm_key\n");
 212                 p_smi->sm_key = 0;
 213         }
 214
 215         /* Check the legality of the packet */
 216         status = __osm_sminfo_rcv_check_set_req_legality(p_smp);
 217         if (status != IB_SUCCESS) {
 218                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F04: "
 219                         "Check legality failed. AttributeModifier:0x%X RemoteState:%s\n",
 220                         p_smp->attr_mod,
 221                         osm_get_sm_mgr_state_str(ib_sminfo_get_state(sm_smi)));
 222                 status = osm_resp_send(sm, p_madw, 7, payload);
 223                 if (status != IB_SUCCESS)
 224                         OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F05: "
 225                                 "Error sending response (%s)\n",
 226                                 ib_get_err_str(status));
 227                 CL_PLOCK_RELEASE(sm->p_lock);
 228                 goto Exit;
 229         }
 230
 231         /* translate from IB_SMINFO_ATTR to OSM_SM_SIGNAL */
 232         switch (p_smp->attr_mod) {
 233         case IB_SMINFO_ATTR_MOD_HANDOVER:
 234                 sm_signal = OSM_SM_SIGNAL_HANDOVER;
 235                 break;
 236         case IB_SMINFO_ATTR_MOD_ACKNOWLEDGE:
 237                 sm_signal = OSM_SM_SIGNAL_ACKNOWLEDGE;
 238                 break;
 239         case IB_SMINFO_ATTR_MOD_DISABLE:
 240                 sm_signal = OSM_SM_SIGNAL_DISABLE;
 241                 break;
 242         case IB_SMINFO_ATTR_MOD_STANDBY:
 243                 sm_signal = OSM_SM_SIGNAL_STANDBY;
 244                 break;
 245         case IB_SMINFO_ATTR_MOD_DISCOVER:
 246                 sm_signal = OSM_SM_SIGNAL_DISCOVER;
 247                 break;
 248         default:
 249                 /*
 250                    This code shouldn't be reached - checked in the
 251                    check legality
 252                  */
 253                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F06: "
 254                         "THIS CODE SHOULD NOT BE REACHED!!\n");
 255                 CL_PLOCK_RELEASE(sm->p_lock);
 256                 goto Exit;
 257         }
 258
 259         /* check legality of the needed transition in the SM state machine */
 260         status = osm_sm_state_mgr_check_legality(sm, sm_signal);
 261         if (status != IB_SUCCESS) {
 262                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F07: "
 263                         "Failed check of legality of needed SM transition. AttributeModifier:0x%X RemoteState:%s\n",
 264                         p_smp->attr_mod,
 265                         osm_get_sm_mgr_state_str(ib_sminfo_get_state(sm_smi)));
 266                 status = osm_resp_send(sm, p_madw, 7, payload);
 267                 if (status != IB_SUCCESS)
 268                         OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F08: "
 269                                 "Error sending response (%s)\n",
 270                                 ib_get_err_str(status));
 271                 CL_PLOCK_RELEASE(sm->p_lock);
 272                 goto Exit;
 273         }
 274
 275         /* the SubnSet(SMInfo) command is ok. Send a response. */
 276         status = osm_resp_send(sm, p_madw, 0, payload);
 277         if (status != IB_SUCCESS)
 278                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F09: "
 279                         "Error sending response (%s)\n",
 280                         ib_get_err_str(status));
 281
 282         /* it is a legal packet - act according to it */
 283
 284         /* if the AttributeModifier is STANDBY - need to save on the sm in */
 285         /* the master_sm_guid variable - the guid of the current master. */
 286         if (p_smp->attr_mod == IB_SMINFO_ATTR_MOD_STANDBY) {
 287                 OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
 288                         "Received a STANDBY signal. Updating "
 289                         "sm_state_mgr master_guid: 0x%016" PRIx64 "\n",
 290                         cl_ntoh64(sm_smi->guid));
 291                 sm->master_sm_guid = sm_smi->guid;
 292         }
 293
 294         CL_PLOCK_RELEASE(sm->p_lock);
 295         status = osm_sm_state_mgr_process(sm, sm_signal);
 296
 297         if (status != IB_SUCCESS)
 298                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F10: "
 299                         "Error in SM state transition (%s)\n",
 300                         ib_get_err_str(status));
 301
 302 Exit:
 303         OSM_LOG_EXIT(sm->p_log);
 304 }
 305
 306 /**********************************************************************
 307  **********************************************************************/
 308 static osm_signal_t
 309 __osm_sminfo_rcv_process_get_sm(IN osm_sm_t * sm,
 310                                 IN const osm_remote_sm_t * const p_sm,
 311                                 boolean_t light_sweep)
 312 {
 313         const ib_sm_info_t *p_smi;
 314
 315         OSM_LOG_ENTER(sm->p_log);
 316
 317         p_smi = &p_sm->smi;
 318
 319         OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
 320                 "Detected SM 0x%016" PRIx64 " in state %u\n",
 321                 cl_ntoh64(p_smi->guid), ib_sminfo_get_state(p_smi));
 322
 323         /* Check the state of this SM vs. our own. */
 324         switch (sm->p_subn->sm_state) {
 325         case IB_SMINFO_STATE_NOTACTIVE:
 326                 break;
 327
 328         case IB_SMINFO_STATE_DISCOVERING:
 329                 switch (ib_sminfo_get_state(p_smi)) {
 330                 case IB_SMINFO_STATE_NOTACTIVE:
 331                         break;
 332                 case IB_SMINFO_STATE_MASTER:
 333                         sm->master_sm_found = 1;
 334                         /* save on the sm the guid of the current master. */
 335                         OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
 336                                 "Found master SM. Updating sm_state_mgr master_guid: 0x%016"
 337                                 PRIx64 "\n", cl_ntoh64(p_sm->p_port->guid));
 338                         sm->master_sm_guid = p_sm->p_port->guid;
 339                         break;
 340                 case IB_SMINFO_STATE_DISCOVERING:
 341                 case IB_SMINFO_STATE_STANDBY:
 342                         if (__osm_sminfo_rcv_remote_sm_is_higher(sm, p_smi)
 343                             == TRUE) {
 344                                 /* the remote is a higher sm - need to stop sweeping */
 345                                 sm->master_sm_found = 1;
 346                                 /* save on the sm the guid of the higher SM we found - */
 347                                 /* we will poll it - as long as it lives - we should be in Standby. */
 348                                 OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
 349                                         "Found higher SM. Updating sm_state_mgr master_guid:"
 350                                         " 0x%016" PRIx64 "\n",
 351                                         cl_ntoh64(p_sm->p_port->guid));
 352                                 sm->master_sm_guid = p_sm->p_port->guid;
 353                         }
 354                         break;
 355                 default:
 356                         break;
 357                 }
 358                 break;
 359
 360         case IB_SMINFO_STATE_STANDBY:
 361                 /* if the guid of the SM that sent us this response is equal to the */
 362                 /* p_sm_mgr->master_guid - then this is a signal that the polling */
 363                 switch (ib_sminfo_get_state(p_smi)) {
 364                 case IB_SMINFO_STATE_MASTER:
 365                         /* This means the master is alive */
 366                         /* Signal that to the SM state mgr */
 367                         osm_sm_state_mgr_signal_master_is_alive(sm);
 368                         break;
 369                 case IB_SMINFO_STATE_STANDBY:
 370                         /* This should be the response from the sm we are polling. */
 371                         /* If it is - then signal master is alive */
 372                         if (sm->master_sm_guid == p_sm->p_port->guid) {
 373                                 /* Make sure that it is an SM with higher priority than us.
 374                                    If we started polling it when it was master, and it moved
 375                                    to standby - then it might be with a lower priority than
 376                                    us - and then we don't want to continue polling it. */
 377                                 if (__osm_sminfo_rcv_remote_sm_is_higher
 378                                     (sm, p_smi) == TRUE)
 379                                         osm_sm_state_mgr_signal_master_is_alive(sm);
 380                         }
 381                         break;
 382                 default:
 383                         /* any other state - do nothing */
 384                         break;
 385                 }
 386                 break;
 387
 388         case IB_SMINFO_STATE_MASTER:
 389                 switch (ib_sminfo_get_state(p_smi)) {
 390                 case IB_SMINFO_STATE_MASTER:
 391                         /* If this is a response due to our polling, this means that we are
 392                            waiting for a handover from this SM, and it is still alive -
 393                            signal that. */
 394                         if (sm->p_polling_sm)
 395                                 osm_sm_state_mgr_signal_master_is_alive(sm);
 396                         else {
 397                                 /* This is a response we got while sweeping the subnet.
 398                                    We will handle a case of handover needed later on, when the sweep
 399                                    is done and all SMs are recongnized. */
 400                         }
 401                         break;
 402                 case IB_SMINFO_STATE_STANDBY:
 403                         if (light_sweep &&
 404                             __osm_sminfo_rcv_remote_sm_is_higher(sm, p_smi))
 405                                 sm->p_subn->force_heavy_sweep = TRUE;
 406                         break;
 407                 default:
 408                         /* any other state - do nothing */
 409                         break;
 410                 }
 411                 break;
 412
 413         default:
 414                 break;
 415         }
 416
 417         OSM_LOG_EXIT(sm->p_log);
 418         return 0;
 419 }
 420
 421 /**********************************************************************
 422  **********************************************************************/
 423 static void
 424 __osm_sminfo_rcv_process_get_response(IN osm_sm_t * sm,
 425                                       IN const osm_madw_t * const p_madw)
 426 {
 427         const ib_smp_t *p_smp;
 428         const ib_sm_info_t *p_smi;
 429         cl_qmap_t *p_sm_tbl;
 430         osm_port_t *p_port;
 431         ib_net64_t port_guid;
 432         osm_remote_sm_t *p_sm;
 433
 434         OSM_LOG_ENTER(sm->p_log);
 435
 436         CL_ASSERT(p_madw);
 437
 438         p_smp = osm_madw_get_smp_ptr(p_madw);
 439
 440         if (p_smp->method != IB_MAD_METHOD_GET_RESP) {
 441                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F11: "
 442                         "Unsupported method 0x%X\n", p_smp->method);
 443                 goto Exit;
 444         }
 445
 446         p_smi = ib_smp_get_payload_ptr(p_smp);
 447         p_sm_tbl = &sm->p_subn->sm_guid_tbl;
 448         port_guid = p_smi->guid;
 449
 450         osm_dump_sm_info(sm->p_log, p_smi, OSM_LOG_DEBUG);
 451
 452         /* Check that the sm_key of the found SM is the same as ours,
 453            or is zero. If not - OpenSM cannot continue with configuration!. */
 454         if (p_smi->sm_key != 0 && p_smi->sm_key != sm->p_subn->opt.sm_key) {
 455                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F18: "
 456                         "Got SM with sm_key that doesn't match our "
 457                         "local key. Exiting\n");
 458                 osm_log(sm->p_log, OSM_LOG_SYS,
 459                         "Found remote SM with non-matching sm_key. Exiting\n");
 460                 osm_exit_flag = TRUE;
 461                 goto Exit;
 462         }
 463
 464         /* Determine if we already have another SM object for this SM. */
 465         CL_PLOCK_EXCL_ACQUIRE(sm->p_lock);
 466
 467         p_port = osm_get_port_by_guid(sm->p_subn, port_guid);
 468         if (!p_port) {
 469                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F12: "
 470                         "No port object for this SM\n");
 471                 goto _unlock_and_exit;
 472         }
 473
 474         if (osm_port_get_guid(p_port) != p_smi->guid) {
 475                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F13: "
 476                         "Bogus SM port GUID\n\t\t\t\tExpected 0x%016" PRIx64
 477                         ", Received 0x%016" PRIx64 "\n",
 478                         cl_ntoh64(osm_port_get_guid(p_port)),
 479                         cl_ntoh64(p_smi->guid));
 480                 goto _unlock_and_exit;
 481         }
 482
 483         if (port_guid == sm->p_subn->sm_port_guid) {
 484                 OSM_LOG(sm->p_log, OSM_LOG_VERBOSE,
 485                         "Self query response received - SM port 0x%016" PRIx64
 486                         "\n", cl_ntoh64(port_guid));
 487                 goto _unlock_and_exit;
 488         }
 489
 490         p_sm = (osm_remote_sm_t *) cl_qmap_get(p_sm_tbl, port_guid);
 491         if (p_sm == (osm_remote_sm_t *) cl_qmap_end(p_sm_tbl)) {
 492                 p_sm = malloc(sizeof(*p_sm));
 493                 if (p_sm == NULL) {
 494                         OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F14: "
 495                                 "Unable to allocate SM object\n");
 496                         goto _unlock_and_exit;
 497                 }
 498
 499                 osm_remote_sm_init(p_sm, p_port, p_smi);
 500
 501                 cl_qmap_insert(p_sm_tbl, port_guid, &p_sm->map_item);
 502         } else
 503                 /* We already know this SM. Update the SMInfo attribute. */
 504                 p_sm->smi = *p_smi;
 505
 506         __osm_sminfo_rcv_process_get_sm(sm, p_sm,
 507                                         osm_madw_get_smi_context_ptr(p_madw)->light_sweep);
 508
 509 _unlock_and_exit:
 510         CL_PLOCK_RELEASE(sm->p_lock);
 511
 512 Exit:
 513         OSM_LOG_EXIT(sm->p_log);
 514 }
 515
 516 /**********************************************************************
 517  **********************************************************************/
 518 static void
 519 __osm_sminfo_rcv_process_set_response(IN osm_sm_t * sm,
 520                                       IN const osm_madw_t * const p_madw)
 521 {
 522         const ib_smp_t *p_smp;
 523         const ib_sm_info_t *p_smi;
 524
 525         OSM_LOG_ENTER(sm->p_log);
 526
 527         CL_ASSERT(p_madw);
 528
 529         p_smp = osm_madw_get_smp_ptr(p_madw);
 530
 531         if (p_smp->method != IB_MAD_METHOD_GET_RESP) {
 532                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F16: "
 533                         "Unsupported method 0x%X\n", p_smp->method);
 534                 goto Exit;
 535         }
 536
 537         p_smi = ib_smp_get_payload_ptr(p_smp);
 538         osm_dump_sm_info(sm->p_log, p_smi, OSM_LOG_DEBUG);
 539
 540         /* Check the AttributeModifier */
 541         if (p_smp->attr_mod != IB_SMINFO_ATTR_MOD_HANDOVER) {
 542                 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F17: "
 543                         "Unsupported attribute modifier 0x%X\n",
 544                         p_smp->attr_mod);
 545                 goto Exit;
 546         }
 547
 548         /* This is a response on a HANDOVER request - Nothing to do. */
 549
 550 Exit:
 551         OSM_LOG_EXIT(sm->p_log);
 552 }
 553
 554 /**********************************************************************
 555  **********************************************************************/
 556 void osm_sminfo_rcv_process(IN void *context, IN void *data)
 557 {
 558         osm_sm_t *sm = context;
 559         osm_madw_t *p_madw = data;
 560         ib_smp_t *p_smp;
 561         osm_smi_context_t *p_smi_context;
 562
 563         OSM_LOG_ENTER(sm->p_log);
 564
 565         CL_ASSERT(p_madw);
 566
 567         p_smp = osm_madw_get_smp_ptr(p_madw);
 568
 569         /* Determine if this is a request for our own SMInfo or if
 570            this is a response to our request for another SM's SMInfo. */
 571         if (ib_smp_is_response(p_smp)) {
 572                 const ib_sm_info_t *p_smi = ib_smp_get_payload_ptr(p_smp);
 573
 574                 /* Get the context - to see if this is a response to a Get or Set method */
 575                 p_smi_context = osm_madw_get_smi_context_ptr(p_madw);
 576
 577                 /* Verify that response is from expected port and there is
 578                    no port moving issue. */
 579                 if (p_smi_context->port_guid != p_smi->guid) {
 580                         OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 2F19: "
 581                                 "Unexpected SM port GUID in response"
 582                                 "\n\t\t\t\tExpected 0x%016" PRIx64
 583                                 ", Received 0x%016" PRIx64 "\n",
 584                                 cl_ntoh64(p_smi_context->port_guid),
 585                                 cl_ntoh64(p_smi->guid));
 586                         goto Exit;
 587                 }
 588
 589                 if (p_smi_context->set_method == FALSE)
 590                         /* this is a response to a Get method */
 591                         __osm_sminfo_rcv_process_get_response(sm, p_madw);
 592                 else
 593                         /* this is a response to a Set method */
 594                         __osm_sminfo_rcv_process_set_response(sm, p_madw);
 595         } else if (p_smp->method == IB_MAD_METHOD_GET)
 596                 /* This is a SubnGet request */
 597                 __osm_sminfo_rcv_process_get_request(sm, p_madw);
 598         else
 599                 /* This should be a SubnSet request */
 600                 __osm_sminfo_rcv_process_set_request(sm, p_madw);
 601
 602 Exit:
 603         OSM_LOG_EXIT(sm->p_log);
 604 }